Diff problem

[jondee86]

(08-24-2014 08:05 PM)izanagi Wrote:  Where could come this whinning noise ?
Rear wheel bearings ?

Generally speaking, wheel bearings do not whine... they rumble. A whine
is typically the noise a differential makes when the crown wheel and pinion
are not perfectly matched. If the diff has had new bearings, it is possible
that it is now set up slightly differently (backlash corrected for wear etc)
and the contact patch is not quite in the same place as before.

Depending on how loud the noise is, and if it is there all the time, or only
at certain speeds/rpm's, you could just keep driving it and hope that after
a while the noise gets less. There really is not much else that can be
done. If there was some mechanical problem with the diff, I'm sure your
mechanic would have discovered it while he was replacing the bearings.

Cheers... jondee86